These mental beings are want to rebirth from bardo state in whatever the best way as soon as possible.
Not always the best way, as beings in the Bardo are normally driven by their strongest habits from their previous life/lives. Theravadrans believe that the last impression a consciousness has just before dying is the leading/deciding factor for the next rebirth.
Maybe in the future bardo beings will prefer to choose artificial bodies than human?
Possibly, but we mustn't forget that there are five skhanda in the human realm. Body is one of the skhanda. If human consciousness was to enter a machine/mechanical body then, by my standards, that would not qualify them as human. Maybe we will need an extra realm of samsaric existence? Cyborg realm?
When it occurs we will have not only human intelligence full of life/feelings but also artificial.
I don't consider the ability of a machine to string sequences of words together and compare them to a data base "full of life" and definitely not "full of feelings"!